Talks Crumble Over Impostor Claiming to Be Senior Taliban Commander

For months, secret talks between Taliban and Afghan leaders have been inching along towards an agreement to end the war in Afghanistan. They've been helped by senior Taliban commander Mullah Akhtar Mohammad Mansour. But it turns out he was an impostor. We're joined by Professor Christine Fair, from the Center for Peace and Security Studies at Georgetown University, to learn more about the story.